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Segment Information - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2024 Segment Customer | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of operating segments [line items] |  |  |
Number of operating segments reported | Segment | 3 |  |
Description of factors used to identify entity's reportable segments | When determining Ericsson’s operating segments, consideration has been given to the financial reporting reviewed by the Chief Operating Decision Maker (CODM). Markets and what type of customers the products and services aim to attract have been considered, as well as the distribution channels they are sold through. Commonality regarding technology, research and development has also been taken into account. To best reflect the business focus, three operating segments are presented: |  |
Number of largest customers | 10 |  |
Bottom of range [Member] |  |  |
Disclosure of operating segments [line items] |  |  |
Number of customer base | 500 |  |
10 largest customers [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Percentage of contribution to net sales | 44.00% | 43.00% | 50.00%
Largest customer [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Percentage of contribution to net sales | 13.00% | 8.00% | 14.00%
Second largest customers [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Percentage of contribution to net sales | 8.00% | 7.00% | 10.00%
Networks [member] | IPR licensing revenues [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Percentage of revenue | 82.00% | 82.00% | 82.00%
Cloud Software and Services [Member] | IPR licensing revenues [member] |  |  |
Disclosure of operating segments [line items] |  |  |
Percentage of revenue | 18.00% | 18.00% | 18.00%

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- Definition Number of major customers. + References No definition available. + Details
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- Definition Number of operating segments reported. + References No definition available. + Details
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- Definition The description of the factors used to identify the entity's reportable segments, including the basis of organisation (for example, whether management has chosen to organise the entity around differences in products and services, geographical areas, regulatory environments or a combination of factors and whether operating segments have been aggregated). [Refer: Geographical areas [domain]; Operating segments [member]; Products and services [domain]; Reportable segments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 22 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_22_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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